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Correct Answer: increases.
**question:** as the volume of a sound increases, the amplitude:
**increases.** a sound’s amplitude is fundamentally the size or magnitude of its vibrations or oscillations. this measurement is directly related to how loud or soft a sound is perceived. when the volume of a sound increases, what is essentially happening is that the sound waves are carrying more energy. this additional energy results in larger oscillations of the particles in the medium through which the sound is traveling, whether it be air, water, or another substance.
**loud sounds have greater amplitude than soft sounds.** this is because louder sounds require more energy, causing the particles in the sound’s medium to move more dramatically from their resting positions. this increased movement (higher amplitude) translates into greater pressure variations, which our ears and brain interpret as higher volume.
**so, as volume increases, so does amplitude.** the relationship between volume and amplitude is direct and proportional. as you turn up the volume on a sound system, for example, you are essentially boosting the amplitude of the sound waves it emits. this results in a louder sound because the sound waves are hitting your eardrum with more force, prompting a stronger signal to be sent to your brain, which is interpreted as a higher volume.
**stays the same.** this option is incorrect because amplitude does change with volume. as explained, an increase in volume equates to an increase in amplitude due to the more energetic oscillations of the medium’s particles.
**there is no relationship between volume and amplitude.** this statement is also incorrect. as detailed above, the relationship between volume and amplitude is well-established and understood in the field of acoustics. the increase in volume directly influences the amplitude of sound waves, making this relationship both crucial and fundamental to understanding how sound works.
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